Question

Proteins have a variety of functions within a living cell. Describe at least three of the possible functions of proteins, and explain how proteins can be so diverse when there are only a limited number of different amino acids?

Answer 1

wat grade r u in?

Answer 2

9th

Answer 3

in this regular Biology?

Answer 4

*is

Answer 5

Yes sir.

Answer 6

im a girl... way unit n lesson?

Answer 7

*wat

Answer 8

I'm so sorry!! module 2, lesson one.

Answer 9

They serve as enzymatic catalysts, are used as transport molecules (hemoglobin transports oxygen) and storage molecules (iron is stored in the liver as a complex with the protein ferritin); they are used in movement (proteins are the major component of muscles); they are needed for mechanical support (skin and bone contain collagen-a fibrous protein); they mediate cell responses (rhodopsin is a protein in the eye which is used for vision); antibody proteins are needed for immune protection; control of growth and cell differentiation uses proteins (hormones). Those are just a few examples. There are thousands of proteins which do various functions.